YASKAWA GA700 Series

4.8 Auto-Tuning
192 YASKAWA SIEPC71061705H GA700 Series Technical Manual
• For best performance, make sure that the drive input supply voltage is equal to or more than the motor rated
voltage.
Note:
Better performance is possible when you use a motor with a rated voltage that is less than the input supply voltage (by 20 V for 200 V
class models or by 40 V for 400 V class models). This is very important when you operate the motor at more than 90% of base speed,
where high torque precision is necessary. If the input power supply is equal to the motor rated voltage, the drive output voltage will not
be sufficient and performance will decrease.
• Push on the keypad to cancel Auto-Tuning.
• If a Safe Disable input signal is input to the drive during Auto-Tuning, Auto-Tuning measurements will not
complete successfully. If this occurs, cancel Auto-Tuning, then do it again.
• Table 4.16 shows the status of multi-function input/output terminals during Auto-Tuning.
Table 4.16 Status of Input/Output Terminals during Auto-Tuning
Auto-Tuning Type Mode Multi-Function Input Digital Output
Induction Motor Auto-Tuning
Rotational Rotational Auto-Tuning Disabled
Functions the same as during
usual operation.
Stationary
Stationary Auto-Tuning 1 Disabled
Keeps the status at the start of
Auto-Tuning.
Line-to-Line Resistance Disabled
Keeps the status at the start of
Auto-Tuning.
PM Motor Auto-Tuning
Rotational
Z-Pulse Offset (Pole Position) Disabled
• PRG: 01028 and earlier:
Keeps the status at the start of
Auto-Tuning.
• PRG: 01029 and later:
Functions the same as during
usual operation.
Rotational (Ld, Lq, R, back-EMF) Disabled
Functions the same as during
usual operation.
Stationary
Manual Entry w/ Motor Data
Sheet
Disabled
Keeps the status at the start of
Auto-Tuning.
PM Stationary Auto-Tuning Disabled
Keeps the status at the start of
Auto-Tuning.
PM Stationary Auto-Tuning for
Stator Resistance
Disabled
Keeps the status at the start of
Auto-Tuning.
EZ Tuning Stationary
Motor Parameter Setting Disabled
Keeps the status at the start of
Auto-Tuning.
Line-to-Line Resistance Disabled
Keeps the status at the start of
Auto-Tuning.
ASR and Inertia Tuning Rotational
Inertia Tuning Disabled
Functions the same as during
usual operation.
ASR (Speed Regulator) Disabled
Functions the same as during
usual operation.
Deceleration Rate Tuning Disabled
Functions the same as during
usual operation.
KEB Tuning Disabled
Functions the same as during
usual operation.
WARNING! Crush Hazard. Wire a sequence that will not let a multi-function output terminal open the holding brake during
Stationary Auto-Tuning. If the holding brake is open during Stationary Auto-Tuning, it can cause serious injury or death.
WARNING! Sudden Movement Hazard. Before you do Rotational Auto-Tuning, disconnect the load from the motor. The load
can move suddenly and cause serious injury or death.
WARNING! Injury to Personnel. Rotational Auto-Tuning rotates the motor at 50% or more of the motor rated frequency. Make
sure that there are no issues related to safety in the area around the drive and motor. Increased motor frequency can cause
serious injury or death.
WARNING! Electrical Shock Hazard. During Auto-Tuning, the motor will receive high voltage when the motor is stopped. Do not
touch the motor until Auto-Tuning is complete. If you touch a motor that is energized, it can cause serious injury or death.
■ Precautions before Rotational Auto-Tuning
WARNING! Electrical Shock Hazard. During Auto-Tuning, the motor will receive high voltage when the motor is stopped. Do not
touch the motor until Auto-Tuning is complete. If you touch a motor that is energized, it can cause serious injury or death.
• Before you do Rotational Auto-Tuning to prevent drive malfunction, uncouple the motor from the load. If you
do Rotational Auto-Tuning with the motor connected to a load that is more than 30% of the motor duty rating,
the drive will not correctly calculate the motor parameters and the motor can operate incorrectly.
• When the load is 30% or less of the motor duty rating, you can do Auto-Tuning with the motor connected to a
load.
• Make sure that the motor magnetic brake is released.